Radiographic Assessment Of The Accuracy Of 3D Ridge Augmentation In Anterior Mandible Using Computer Guided Autogenous Cortical Shell Technique Versus Free Hand Technique
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: horizontal and vertical bone augmentation using computer guided cortical shell technique, free hand cortical shell technique in anterior 3d defect.
- Who it may be relevant to
- Registry conditions: Bone Loss. Basic parameters: 20 years — 60 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
\* this study aims to evaluate accuracy of fixation of the bone shells by a calculated distance which is always a challenging step for inexperienced surgeons to fix a cortical shells at the ideal position in the conventional protocol. the fixation guides used to make the shells precisely fixed at the proper position and angulation the problem is if it fixed with insufficient distance with proposed volume loss leads to totally insufficient volume gain for future implant placement * also to evaluate the efficacy of the CAD/CAM surgical guide during chin harvesting (harvesting guide ) procedure in reducing the risk of anatomical structure damage (mental neve) and patient morbidity with more accuracy compared with the standard technique and preserve the roots of the lower anterior teeth or any fracture to the inferior border of the mandible also allow to harvest the bone shells from the suitable area with cancellous bone which prevent bad split of the bone shells this trial versus free hand conventional cortical shell bone technique both harvested from symphysis area (chin), * also to evaluate thickness of implanted bone shells , the thickness should be enough to preserve the graft(autograft 50% and xenograft 50%) between the buccal and lingual bone shells * also aims to evaluate the vertical and horizontal bone augmentation achieved at the anterior mandible using computer-guided cortical shell bone technique.
Detailed description
this study aims to evaluate accuracy of fixation of the bone shells by a calculated distance which is always a challenging step for inexperienced surgeons to fix a cortical shells at the ideal position in the conventional protocol.
the fixation guides used to make the shells precisely fixed at the proper position and angulation the problem is if it fixed with insufficient distance with proposed volume loss leads to totally insufficient volume gain for future implant placement
* also to evaluate the efficacy of the CAD/CAM surgical guide during chin harvesting (harvesting guide ) procedure in reducing the risk of anatomical structure damage (mental neve) and patient morbidity with more accuracy compared with the standard technique and preserve the roots of the lower anterior teeth or any fracture to the inferior border of the mandible also allow to harvest the bone shells from the suitable area with cancellous bone which prevent bad split of the bone shells this trial versus free hand conventional cortical shell bone technique both harvested from symphysis area (chin), * also to evaluate thickness of implanted bone shells , the thickness should be enough to preserve the graft(autograft 50% and xenograft 50%) between the buccal and lingual bone shells * also aims to evaluate the vertical and horizontal bone augmentation achieved at the anterior mandible using computer-guided cortical shell bone technique.
Interventions
- Procedure horizontal and vertical bone augmentation using computer guided cortical shell technique
Computer-guided cortical shell technique in anterior mandible 3d defect using bone harvesting guide and fixation guides - Procedure free hand cortical shell technique in anterior 3d defect
vertical and horizontal ridge augmentation in anterior mandible using free hand cortical shell technique
Primary outcome measures
- accuracy of the implanted bone blocks [Time frame: immediately post operative]
Secondary outcome measures (1)
- bone gain vertical and horizontal [Time frame: 6 months]
Eligibility criteria
Inclusion criteria
- Age ranges from 20-60 years. No sex predilection.
Patients free from any systemic conditions and bone metabolism diseases that might interfere with the surgical intervention, soft tissue or hard tissue healing.
Edentulous anterior mandible with a horizontally deficient alveolar ridge that is less than 3mm in width and with a vertically defect at least 3mm in height.
The minimum number of missing teeth in the anterior mandible alveolar ridge is two adjacent teeth.
Exclusion criteria
- Intra-bony lesions (e.g., cysts) or infections (e.g., abscess) that may retard the osteotomy healing.
Previous grafting procedures in the edentulous area
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT06691516 · Computer guided cortical shell